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<strong>ZINC</strong>, <strong>CADMIUM</strong>, <strong>AND</strong> <strong>MERCURY</strong><br />
• Hg I ‐Hg ll Equilibria<br />
• Understanding the thermodynamics of the equilibria<br />
is essential to understand the chemistry of the Hg I<br />
state.<br />
• The important parameter s are the potentials:<br />
• Hg 2+ + 2 e ‐ = 2 Hg E 0 = 0.789 V<br />
• 2 Hg 2+ + 2 e ‐ = Hg 2<br />
2+<br />
E 0 = 0.920 V<br />
• Hg 2+ + 2 e ‐ = Hg E 0 = 0.854 V
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